I have looked at some threads here about who 'owns' a website design. I am looking for some input from freelancers/design shop owners in terms of how they would handle the following situation:

I have a potential client, Mr. C (not his real name) who wants to hire me to do a site redesign. However, he is insistent about having language in our contract that grants him sole copyright to any work that I do for him, including the code and design of the site.

I don't have a problem with him owning the content or logos, but if I create a site I want to retain the right to use aspects of it in the future (eg.,feature it on my portfolio page). Also, my understanding is that if I relinquished all my rights to the site, Mr. C could hire another web developer after me who could then represent the site as his own work.

How do you usually handle this type of situation with clients? Thanks...